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Finding the Fourth Proportional to 36,774.78, 55,189.80 and 26,939.40

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Solution

The fourth proportional to 36,774.78, 55,189.80 and 26,939.40 is: 40,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,774.78 : 55,189.80 = 26,939.40 : x
  2. Step 2: Convert to fraction form
    36,774.78/55,189.80 = 26,939.40/x
  3. Step 3: Cross multiply
    36,774.78x = 55,189.80 × 26,939.40
  4. Step 4: Simplify right side
    36,774.78x = 1,486,780,098.12
  5. Step 5: Solve for x
    x = 1,486,780,098.12/36,774.78
  6. Step 6: Final answer
    x = 40,429.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.